1. Toward an axis, as in a sunflower; the oldest flowers are near the edge, the youngest in the centre

See also: centripetal

• jackdaw
• jackeroo
• jacket
• jacket crown
• jacket potato
• jackfruit
• jackfruit tree
• jackhammer
• Jackie Robinson
• jacking off
• jackknife
• jackknife clam
• jackknife-fish
• jacklight
• jackpot
• jackrabbit
• jacks
• jackscrew
• jacksie
• jacksmelt
• jacksnipe
• Jackson
• Jackson Pollock
• Jacksonia
• Jacksonian